KR102294265B1 - Cleaning system with increased alien material blocking prevention efficiency - Google Patents

Abstract

An objective of the present invention is to provide a water treatment system with increased alien material blocking prevention efficiency which may easily manage maintenance because a maintenance period such as cleaning of a screen is increased by clearly reducing a case where a pump or a pipe is blocked at a water treatment place such as wastewater treatment plants. The water treatment system comprises: a water tank (110) to store water for treating objects to be processed; a screen (112) installed at the water tank (110) to form a screen space (112SC) at an inner space of the water tank (110); an overflow pipe (152) connected with the screen space (112SC) of the water tank (110) to receive water through the screen (112); a filter (162) installed in the overflow pipe (152) to filter alien material from water from the overflow pipe (152); an overflow water tank (172) to receive water filtered by the filter (162) in the overflow pipe (152); and a pump (132) to recirculate water received in the overflow water tank (172) to the water tank (110). Since a time when alien material generated during processing such as washing of an object to be processed is stuck in a through hole of the screen to block the through hole may be delayed to the maximum by making a speed of water in a screen space of a water tank converging 0, a period of maintenance such as cleaning or replacement of a screen is increased as much as to easily manage the maintenance.

Description

Water treatment system with improved foreign material blocking prevention efficiency {Cleaning system with increased alien material blocking prevention efficiency}

The present invention relates to a water treatment system with improved efficiency of preventing clogging of foreign substances, and more particularly, the occurrence of blockages in pumps or pipes in water treatment places such as wastewater treatment plants is definitely reduced, so that the maintenance period such as screen cleaning is reduced as much as possible. It relates to a water treatment system with improved efficiency of preventing clogging of foreign substances of a new configuration that is longer and easier to manage, such as maintenance.

The bubble apparatus is used in wastewater treatment plants and aquaculture plants because it has the effect of efficiently supplying dissolved oxygen to the water in the water tank 110 of wastewater treatment plants and aquaculture plants, floating or sedimenting organic suspensions, and oxidatively decomposing.

However, when transferring to one tank 110 or a plurality of tanks 110 in the wastewater treatment plant, foreign substances contained in wastewater, feed residues from the farm, or small fish are sucked into the pump and clogged with the pump or pipe. . In order to prevent such substances, a screen including a perforated net or a mesh net is used, and the screen is clogged.

Korean Patent No. 10-1252673 (registered on April 01, 2013) Korean Patent No. 10-1524438 (registered on May 20, 2015)

An object of the present invention is that the occurrence of clogging of pumps or pipes in water treatment places such as wastewater treatment plants is definitely reduced, so the maintenance period such as screen cleaning is lengthened by that much, so the management of maintenance, etc. becomes easier. Foreign substances of a new configuration An object of the present invention is to provide a water treatment system with improved clogging prevention efficiency.

According to the present invention for solving the above problems, a water tank filled with water to soak the object to be treated; a screen installed in the water tank to form a screening space in the inner space of the water tank; an overflow pipe connected to the screening space of the water tank through which water passing through the screen enters; a filter installed in the overflow pipe to filter out foreign substances from the water entering the overflow pipe; an overflow tank that enters the overflow pipe and receives the water filtered by the filter; a suction port provided in the overflow water tank; There is provided a water treatment system with improved efficiency of preventing clogging of foreign substances, characterized in that it includes; a pump that recirculates the water filled by naturally falling into the overflow tank to the water tank.

a spray nozzle provided in the screening space formed in the water tank by the screen; a bubble generating device connected to the injection nozzle to generate bubbles in the water immersed in the object to be treated; It further includes a suction port provided in the overflow water tank, wherein the pump is configured to suck water filled in the overflow water tank through the suction port and recirculate it to the water tank.

The water filled in the water tank enters the overflow pipe so that the speed through the passage hole of the screen converges to zero, flows through the filter, and overflows into the overflow tank to naturally fall, the screen It is characterized in that it is configured to delay as much as possible the period in which foreign substances generated during washing of the object to be treated are blocked in the passage hole of the .

The speed at which the water filled in the water tank passes through the passage hole of the screen is characterized in that it is in the range of 1 to 2 cm per minute.

A nozzle support pipe erected in a vertical direction to face the screen is installed in the screen water tank space partitioned by the screen, and the jet nozzle is installed in the nozzle support pipe, and water is reversed toward the screen by the jet nozzle. It is characterized in that it is configured to prevent foreign substances from being caught in the passage hole of the screen by spraying.

The injection nozzle is coupled to the nozzle support pipe, characterized in that it is arranged in plurality along a circumferential trajectory facing the screen.

The nozzle support pipe is configured to be rotatable, and while the jet nozzle coupled to the nozzle support pipe also rotates, water is evenly and reversely sprayed on the entire surface of the screen to prevent foreign substances from being caught in the passage hole of the screen. characterized.

Oxygen, ozone, or general air is introduced into the bubble generator so that the water filled in the water tank is formed into aerobic water.

A jet nozzle provided in the screening space between the screen and the water tank is provided, and a bubble generating nozzle for generating bubbles in the water immersed in the treatment object is connected to the jet nozzle, and the bubble generating nozzle is connected to the pump and is configured to generate bubbles in the water filled in the water tank by the bubble generating nozzle, wherein the bubble generating nozzle includes: a nozzle body having a flow path therein; a supply header unit coupled to an outer circumferential surface of the nozzle body; an inlet chamber secured between an outer circumferential surface of the nozzle body and an inner circumferential surface of the supply header part; a supply hole provided in the supply header part and communicating with the inflow chamber; a spray hole provided in the nozzle body and communicating with the inlet chamber; an intermediate injection hole communicating with the inlet injection hole; an inner injection hole that is connected to the intermediate injection hole and the flow path inside the nozzle body and extends at a predetermined angle with respect to the axial direction of the nozzle body, the inner diameter of which becomes narrower toward the flow path inside the nozzle body; and characterized in that

According to the present invention, when transferring to one tank or multiple tanks of a wastewater treatment plant, foreign substances contained in wastewater, feed residues from farms, or small fish are sucked into the pump and clogging the pump or piping is definitely reduced. As the maintenance period for such items becomes that much longer, the management of maintenance and the like becomes easier. In particular, the effect of the present invention is configured so that the speed at which the water in the screening space of the water tank passes through the passage hole of the screen converges to 0. Since it is possible to delay as much as possible the period in which the passage hole of the screen is blocked due to the foreign material being caught, the maintenance period such as cleaning or replacement of the screen is lengthened as much as possible, thereby facilitating the management of the maintenance and the like.

1 is a view schematically showing the structure of a water treatment system with improved efficiency of preventing clogging of foreign substances according to the present invention;
Figure 2 is a side view showing an enlarged structure of the injection nozzle, which is the main part of the present invention;
3 is a view schematically showing an embodiment in which a plurality of screens shown in FIG. 1 are installed in a water tank;
4 is a view showing an embodiment in which the screen, which is the main part of the present invention, is configured in the shape of a square plate;
5 is a view schematically showing a state in which a plurality of screens shown in FIG. 4 are installed in a water tank;
6 is a plan view schematically showing a state in which a plurality of injection nozzles, which are another main part of the present invention, are installed to face the screen;
7 is a view schematically showing the structure of a water treatment system with improved efficiency of preventing clogging of foreign substances according to another embodiment of the present invention;
8 is a cross-sectional view showing the structure of a bubble generating nozzle which is a main part of the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The objects, features and advantages of the present invention will be more readily understood by referring to the accompanying drawings and the following detailed description. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the components from other components, and the essence, order, or order of the components are not limited by the terms. For example, when a component is described as being "connected", "coupled" or "connected" to another component, the component may be directly connected or connected to the other component, but between each component. It will be understood that another component may be “connected,” “coupled,” or “connected.”

1 is a view schematically showing the structure of a water treatment system with improved efficiency of preventing clogging of foreign substances according to the present invention; A view schematically showing an embodiment in which a plurality of screens are installed in a water tank, FIG. 4 is a view showing an embodiment in which the screen, which is a main part of the present invention, is configured in a square plate shape, FIG. 5 is a plurality of screens shown in FIG. 4 in a water tank 6 is a plan view schematically showing a state in which a plurality of injection nozzles, which are another main part of the present invention, are installed to face the screen, and FIG. 7 is a foreign material according to another embodiment of the present invention. 8 is a cross-sectional view schematically showing the structure of a water treatment system with improved clogging prevention efficiency.

Referring to the drawings, the water treatment system with improved efficiency of preventing foreign matter clogging of the present invention includes a water tank 110 filled with water to soak a treatment object, a screen 112 installed in the water tank 110 , and the screen 112 ) and the spray nozzle 114 provided in the screening space 112SC between the water tank 110, and a bubble generator connected to the spray nozzle 114 to generate bubbles in the water immersed in the object to be treated; and the water tank The overflow pipe 152 that is connected to the screening space 112SC of 110 and enters the water passing through the screen 112, and the overflow pipe 152 is installed in the overflow pipe 152 from the water entering A filter 162 that filters out foreign substances, an overflow water tank 172 that enters the overflow pipe 152 and receives the water filtered by the filter 162, and a suction port provided in the overflow water tank 172 116 and a pump 132 for recirculating the water received in the overflow water tank 172 to the water tank 110 by sucking it through the suction port 116 .

The water tank 110 is configured in a hexahedral tank shape, and is filled with water to a predetermined height for immersing the object to be treated in the water tank 110 .

The inlet end of the overflow pipe 152 is connected to the screening space 112SC of the water tank 110 partitioned by a screen, and enters the inlet end of the overflow pipe 152, the water filled in the water tank 110. The speed passing through the through hole of the screen 112 becomes a speed converging to zero. The suction port 116 is not installed in the screening space 112SC of the water tank 110, but the suction port 116 is formed in the overflow spoon, and the pump is connected to the suction port 116 to the overflow pipe 152. In 110), the water of the water tank 110 that enters through the plurality of passage holes of the screen flows naturally without pumping force and enters the inlet end of the overflow pipe 152, so that in the water tank 110 The speed at which the filled water passes through the passage hole of the screen 112 becomes a speed that converges to zero, and the speed of water entering the inlet end of the overflow pipe 152 also becomes a speed that converges to zero.

In a state in which foreign substances such as oil stains generated during washing of the object to be treated in the screening space 112SC of the water tank 110 float on the water tank 110, relatively clean water slowly flows toward the inlet end of the overflow pipe 152. It naturally falls into the overflow tank 172 through the outlet end of the overflow pipe 152 connected to the inside of the overflow tank 172 . Due to this, it is configured to delay as much as possible the period in which foreign substances generated during washing of the object to be treated are blocked in the passage hole of the screen 112 .

The screen 112 may be composed of a perforated network or a mesh network, and a through hole of the screen 112 is a perforated network or a mesh hole of a mesh network. The speed at which the water filled in the water tank 110 passes through the passage hole of the screen 112 is in the range of 1 to 2 m per minute. Water from the inside of the water tank 110 to the inlet end of the overflow pipe 152 comes in by a natural flow, and water coming out of the outlet end of the overflow pipe 152 into the inside of the overflow water tank 172 naturally falls. Therefore, the speed at which the water filled in the water tank 110 passes through the through hole of the screen 112 is in the range of 1 to 2 m per minute. That is, the speed at which water passes through the screen through hole in the water tank 110 is slowed down as much as possible.

The screen 112 is composed of a single-sided cylindrical plate having a plurality of through-holes communicating on both sides. The inner space of the water tank 110 partitioned by the screen is divided into a screening space 112SC and a screening outer space. When the screen is formed as a single-sided cylindrical plate, it is possible to prevent the screen 112 from partially clogging the screen 112 with foreign substances such as foreign substances generated by washing the object to be treated with bubbles, and the screen 112 removes the foreign substances from the screening space 112SC. ) to further increase the volume of the screening space toward the screening space 112SC to further increase the cleaning efficiency in the screening space 112SC. In this case, the screen may be configured in a plate shape completely partitioning the space between the two water tank 110 walls facing each other of the water tank 110 . If the water tank 110 is a hexahedral water tank shape, the screen 112 is configured in a square plate shape, and may be configured in a plate shape completely partitioning the space between the two tank walls facing each other of the water tank 110 . The inner space of the water tank 110 partitioned by the screen is divided into a screening space 112SC and a screening outer space.

In addition, a plurality of the screens are installed in the inner space of the water tank 110, so that water passes through the passage holes of the plurality of screens. By allowing this mixed water to pass through the passage holes of the plurality of screens 112, foreign substances are filtered out several times, thereby further increasing the efficiency of the foreign material filter 162 ring and the passage hole of the front screen 112 is the rearmost screen. If more foreign substances are accumulated compared to the passage hole of 112, the screen 112 having more foreign substances accumulated in the passage hole is removed and a new screen 112 is replaced. has a beneficial effect.

An overflow space is provided inside the overflow water tank 172 , and the outlet end of the overflow pipe 152 communicates with the overflow space inside the overflow water tank 172 , so that the screening of the water tank 110 . Water entering the inlet end of the overflow pipe 152 from the space 112SC comes out of the outlet end of the overflow pipe 152 and freely falls into the overflow space inside the overflow water tank 172 .

At this time, a filter 162 is provided inside the overflow pipe 152, and the filter 162 filters out foreign substances from the water entering the overflow pipe 152 from the screening space 112SC of the water tank 110. out, and the clean water filtered by the filter 162 overflows to the outlet end of the overflow pipe 152 and freely falls into the overflow space inside the overflow water tank 172 .

On the other hand, the height of the outlet end of the overflow pipe 152 is configured to be at a position lower than the water level filled in the water tank 110 , and the uppermost height of the overflow pipe 152 is the water level filled in the water tank 110 . Constructed lower, water enters the inlet end of the overflow pipe 152 in the screening space 112SC, passes through the filter 162, and purified water from which foreign substances are filtered is discharged at the outlet end of the overflow pipe 152. It is configured so that the purified water flows more smoothly into the overflow space of the overflow water tank 172 by smoothly falling freely.

The overflow water tank 172 is provided with a suction port 116 , a pump is connected to the suction port 116 , and a circulation pipe for recirculating water to the space inside the water tank 110 is connected to the pump. Clean water from which foreign substances are filtered through the filter 162 installed in the overflow pipe 152 is pumped through the pump 132 and recirculated to the inner space of the water tank 110 through the circulation pipe. Clean water from which foreign substances have been removed by the filter 162 may be pumped back into the inner space of the water tank 110 by the pump 132 .

The suction port 116 is installed at the bottom of the overflow water tank 172 so as to be lower than the level of purified water that has freely fallen into the overflow space of the overflow water tank 172 .

A nozzle support pipe 114PI erected in a vertical direction to face the screen 112 is installed in the screening space 112SC partitioned by the screen 112, and the nozzle support pipe is connected to the circulation pipe connected to the pump. and a jet nozzle 114 is installed in the nozzle support pipe 114PI, and the jet nozzle 114 sprays water in reverse toward the screen 112 . Water is sprayed backward from the spray nozzle 114 toward the screen 112 , and the spray nozzle 114 is connected to the bubble generating nozzle 120 through a connection pipe such as a hose, and oxygen or ozone is generated by the bubble generating nozzle. However, water mixed with general air is reversely sprayed through the injection nozzle 114, and the water filled in the water tank 110 is changed to aerobicity, thereby increasing the efficiency of desorbing and removing foreign substances from the object to be treated. Of course, bubbles are generated in the water of the water tank 110 by the bubble generating nozzle 120 to wash the object to be treated by the burr. The bubble generating nozzle 120 is provided in the bubble generating device.

It is preferable that the injection nozzle 114 is coupled to the nozzle support pipe 114PI and arranged in plurality along a circumferential trajectory facing the screen 112 . The injection nozzle 114 sprays water at a certain pressure toward the screen 112 in a reverse direction so that foreign substances generated from the object to be treated do not block the passage hole of the screen 112 by being caught in the passage hole of the screen 112, and in the passage hole of the screen. In order to desorb foreign substances, when a plurality of spray nozzles 114 are disposed along the surface facing the screen 112, water is evenly reversed on the entire surface of the screen 112, and the entire screen 112 is caused by foreign substances. Since all foreign substances blocked by the passage holes provided on the surface are removed, the period in which the passage holes of the screen 112 are blocked by foreign substances is further extended.

The nozzle support pipe 114PI is configured to be rotatable, and the spray nozzle 114 coupled to the nozzle support pipe 114PI also rotates to evenly spray water on the entire surface of the screen 112 . As the spray nozzle 114 rotates, water is evenly sprayed on the entire surface of the screen 112 , thereby further reducing the probability that the passage hole of the screen 112 is blocked by foreign substances.

The screen 112 is a self-cleaning screen 112 , and the height of the upper end of the screen 112 is set to be higher than that of the water filled in the water tank 110 .

The bubble generator is a revolving bubble generator equipped with a bubble generating nozzle, which allows air, oxygen, or ozone to be absorbed by itself, and 30% or more of gas of the liquid circulation amount is introduced to increase the injection speed. By spraying this on the perforated network, foreign substances or fry are prevented and only liquid is introduced and circulated. As such, the probability of accumulating foreign substances in the passage hole of the screen 112 is reduced.

One or more of the jet nozzles 114 (liquid including bubbles) cause water to be jetted back toward the screen 112 , and the jet nozzles 114 are positioned below the middle of the water level. The injection nozzle 114 uses an expansion tube so that the gas does not float quickly in the water.

The distance between the spray nozzle 114 expansion and the screen 112 is 3 to 5 times the diameter of the spray nozzle expansion. It takes into account the expansion angle of the spray tube.

The screen 112 can be cleaned and replaced by installing two or more and making it easy to attach and detach upward along the guider. The screen has a structure coupled to the water tank 110 so that it can be washed and replaced.

Therefore, according to the present invention, when transferring to one tank 110 or a plurality of tanks 110 in the wastewater treatment plant, foreign substances contained in wastewater, feed residues of the farm, or small fish are sucked into the pump 132, and the pump ( 132) or the case of clogging the pipe is definitely reduced, so that the maintenance period such as cleaning the screen 112 becomes longer, so that the management of maintenance and the like becomes easier. In particular, in the present invention, by setting the speed at which the water in the screening space 112SC of the water tank 110 passes through the passage hole of the screen 112 to a speed that converges to 0, the Since it is possible to delay the period in which foreign substances generated during washing of the object to be treated are blocked as much as possible, the maintenance period, such as cleaning the screen 112, becomes longer, thereby making it easier to manage the maintenance and the like.

In addition, by forming the through-holes in the entire screen 112, even if foreign substances are caught in the through-holes, the period during which the entire passage-holes of the screen 112 are blocked can be further increased, so that the number of maintenance such as cleaning is reduced. There is an advantage.

In addition, in the present invention, the spray nozzle 114 is configured to spray water to the screen 112 while moving up and down in the water tank 110 by means of elevating means, so that water is evenly applied to the entire upper and lower surfaces of the screen 112 . Since it is sprayed, the probability that foreign substances are caught in the entire passage hole of the screen 112 is further reduced.

Meanwhile, in the present invention, an overflow hole 113 is provided in the water tank 110 , and an external overflow water tank 180 for receiving floating matter overflowing from the overflow hole 113 is provided on the outside of the water tank 110 . is installed, and a connection overflow circulation pipe 181 is connected to the external overflow water tank 180 , and a first circulation pipe 182 and a second circulation pipe 184 are connected to the connection overflow circulation pipe 181 . is connected, the first circulation pipe 182 is connected to the water tank 110, the second circulation pipe 184 is connected to the overflow water tank 172, and the connected overflow circulation pipe 181 ) is provided with a filter 186 , an inlet end filter 192 is provided at the inlet end of the overflow pipe 152 , and the filter 162 is detachable at the outlet end of the overflow pipe 152 . coupled to each other, and the overflow pipe 152 is provided with a communication hole 152CH.

The water tank 110 is provided with an overflow hole 113, and the floating matter (a mixture of water and foreign substances) overflowing from the overflow hole 113 of the water tank 110 is removed from the external overflow water tank 180 . accept

The floating material floating to the upper part of the water tank 110 comes out of the water tank 110 through the overflow hole 113 and enters the external overflow water tank 180, and a circulation pipe is connected to the outer overflow water tank 180 and , the circulation pipe is branched into a first circulation pipe 182 connected to the inner space of the water tank 110 and a second circulation pipe 184 connected to the overflow water tank 172, and the first circulation pipe 182 And the second circulation pipe 184 is provided with a filter 186. The filter 186 is detachably coupled to the first circulation pipe 182 and the second circulation pipe 184 . Accordingly, the filter 186 coupled to the first circulation pipe 182 and the second circulation pipe 184 can be combined and separated more quickly and easily. Alternatively, a connection overflow circulation pipe 181 is connected to the external overflow water tank 180 , and a connection overflow circulation pipe 181 is connected between the first circulation pipe 182 and the second circulation pipe 184 . The filter 186 may be installed in the connection overflow circulation pipe 181, and in this case, only one filter 186 is installed. Of course, the filter 186 is installed in the connection overflow circulation pipe 181 It may be configured to be detachably coupled by a detachable coupling means.

An inlet end filter 192 is provided at the inlet end of the overflow pipe 152 , and the inlet end filter 192 is detachably coupled to the inlet end of the overflow pipe 152 or the water tank 110 . The inlet end filter 192 is coupled to the inlet end of the overflow pipe 152 by a detachable coupling means such as a screw portion, or the inlet end of the overflow pipe 152 communicates with the water tank 110 such as a bracket and a bolt. The inlet end filter 192 is detachably coupled to the water tank 110 by the coupling means, and at the same time, it can take a structure in which the inlet end of the overflow pipe 152 is blocked from the front.

In addition, the overflow pipe 152 extends downward a predetermined length toward the bottom of the overflow water tank 172 so that the outlet end of the overflow pipe 152 faces the bottom of the overflow water tank 110 at a position. are placed A filter 162 is provided at the outlet end of the overflow pipe 152 . The filter 162 is detachably coupled to the outlet end of the overflow pipe 152 . The filter 162 may be detachably coupled to the outlet end of the overflow pipe 152 by a detachable coupling means such as a screw part.

At this time, the overflow pipe 152 is configured such that the intermediate overflow pipe part 152C is connected in the horizontal direction between the first overflow pipe part 152A and the second overflow pipe part 152B that are parallel to each other, and the second overflow pipe part 152C is connected. The outlet hole is provided at the lower end of the overflow pipe part 152B so that the outlet hole of the overflow pipe 152 faces the bottom part of the overflow water tank 172, and the filter 186 overflows. It takes a structure detachably coupled to the outlet end of the tube (152). Due to this, the filter 186 has a structure detachably coupled to the outlet end of the overflow pipe 152 . Since the filter 186 is detachably coupled to the outlet end of the overflow pipe 152 , the filter 186 can be more easily and quickly coupled to and separated from the overflow pipe 152 .

In addition, the overflow pipe 152 is provided with a communication hole (152CH). The communication hole 152CH is provided in the middle overflow pipe part 152C of the overflow pipe 152 . The communication hole 152CH communicates the inside of the overflow pipe 152 with the atmosphere so that the inside of the overflow pipe 152 is at atmospheric pressure. As such, when the inside of the overflow pipe 152 is at atmospheric pressure, when the water overflows from the water tank 110 to the overflow pipe 152, the speed (flow rate) of the water inside the overflow pipe 152 increases. Since the speed of the water flowing in the water tank 110 is not increased and can be delayed as much as possible, the period in which the plurality of passage holes of the screen installed inside the water tank 110 are blocked by foreign substances more reliably be able to increase

Floating matter (a mixture of foreign substances such as oil and water, hereinafter referred to as floating matter for convenience) generated when the water tank 110 generates bubbles in the water to process the object to be treated (for example, the object to be washed) is a water tank As it overflows through the overflow hole 113 formed in 110 and enters the external overflow water tank 180 , the floating material is discharged to the outside of the water tank 110 once.

Next, clean water from which foreign substances are filtered by the filter 186 from the floating material flows into the first circulation pipe 182 to recirculate the clean water back to the water tank 110 . On the other hand, the second circulation pipe 184 may be recirculated so that clean water from which foreign substances have been filtered by the filter 186 from the floating matter flows and is supplied back to the overflow water tank 172 .

The water, which has been filtered out of foreign substances from the floating matter overflowing from the water tank 110 by the filter 186, is recycled back to the water tank 110 through the first circulation pipe 182 or the second circulation pipe 184. It can be recycled back to the overflow tank 172 through the. That is, the water filtered by the filter 186 from the floating matter overflowing from the water tank 110 is recycled only to the water tank 110 through the first circulation pipe 182 or the second circulation pipe 184. Either recirculate only to the overflow water tank 172 through that can be recycled.

In addition, in the present invention, it may be configured to block the suction port 116 installed in the overflow water tank 172 with a filter 194. The filter 194 is attached to the overflow water tank 172 to a detachable coupling means such as a bracket and a bolt. It may be detachably coupled to the suction port 116, and may be detachably coupled to the suction port 116 by a detachable coupling means such as a screw. can be filtered so that clean water enters the pump 132 side.

Therefore, in the present invention, foreign substances are filtered by the screen from the water overflowing to the overflow water tank 172 and the foreign substances are filtered by the filter 186 provided at the inlet end of the overflow pipe 152, and the overflow Since foreign substances are filtered by the filter 186 provided at the outlet end of the pipe 152 and the foreign substances are filtered through the filter 186 installed at the inlet port, the foreign substances are filtered over a total of 4 times, the pump 132 Prevents foreign substances from entering the pump 132 to damage the pump 132, and prevents the bubble generating nozzle 120 connected to the pump 132 from being clogged by foreign substances, so that reliability can be more reliably increased. do.

A spray nozzle 114 provided in the screening space 112SC between the screen 112 and the water tank 110 is provided, and the spray nozzle 114 generates bubbles in the water immersed in the object to be treated. A generating nozzle 120 is connected, and the bubble generating nozzle 120 is connected to the pump 132 to generate bubbles in the water filled in the water tank 110 by the bubble generating nozzle 120 . The bubble generating nozzle 120 includes a nozzle body 20 having a flow path formed therein, a supply header 30 coupled to an outer circumferential surface of the nozzle body 20 , an outer circumferential surface of the nozzle body 20 and The inlet chamber 31 secured between the inner circumferential surface of the supply header part 30, the supply hole 38 provided in the supply header part 30 to communicate with the inflow chamber 31, and the nozzle body ( 20) and is configured to include an injection hole 22 communicating with the inlet chamber 31, and the injection hole 22 is an injection injection extending from the outer circumferential surface of the nozzle body 20 to the inside by a predetermined depth. A hole 22AH, an intermediate injection hole 22BH communicating with the inlet injection hole 22AH, and the intermediate injection hole 22BH and the nozzle body 20 are connected to the flow path inside the nozzle body 20 and the nozzle body 20 It extends inclined at a certain angle with respect to the axial direction of the nozzle body 20 and is configured to include an inner injection hole 22DH whose inner diameter becomes narrower toward the flow path inside the nozzle body 20 .

A backflow barrier 22STP is provided in the inner injection hole 22DH. The backflow barrier 22STP prevents the fluid from flowing back into the inner injection hole 22DH when the fluid flows through the flow path inside the nozzle body 20 . Even when the fluid flowing through the flow path inside the nozzle body 20 enters the inner injection hole 22DH and tries to flow back to the outer circumferential surface of the nozzle body 20, the fluid is caught by the backflow barrier 22STP, so that the backflow of the fluid is it will be prevented

The injection hole 22 is configured to include an inlet injection hole 22AH, an intermediate injection hole 22BH, a cross intermediate injection hole 22CH, and an inner injection hole 22DH, through the inlet injection hole 22AH. The supply material enters at a predetermined pressure, the supply material enters the intermediate injection hole 22BH at a predetermined pressure, and the supply material passes through the cross intermediate injection hole 22CH and enters the inner injection hole 22DH, The inner injection hole 22DH is configured such that the inner diameter gradually decreases toward the flow path inside the nozzle body 20, so that the speed of the supplied material entering the inner injection hole 22DH at a constant pressure is accelerated, so that the nozzle body 20 ) As it is injected into the fluid flowing through the internal flow path, the bubbles are split as finely as possible, thereby maximizing the efficiency of bubble generation. By maximizing the bubble generation efficiency, it is possible to maximize the efficiency of the intended use in the place of use, such as a washing water tank using bubbles. At this time, the supply material may be a liquid such as hydrogen peroxide, oxygen, ozone, or air. In the present invention, liquid, oxygen, ozone, and air enter through the divided supply hole 38 , respectively.

In addition, in the present invention, a plurality of divided supply header sets 30DHS are coupled to the outer peripheral surface of the nozzle body 20 in plurality, and divided supply holes formed for each of the plurality of divided supply header sets 30DHS of the supply header unit 30 ( 38), different types of supply materials (for example, liquid such as hydrogen peroxide, oxygen or ozone, air) are separately supplied, respectively, so it is possible to supply at different pressures for each type of supply material. Not only can it increase the supply efficiency of the supply and satisfy the purpose of separately supplying different types of supply materials, but also when the supply hole 38 is clogged with different types of supply materials mixed with each other (in the present invention, divided supply Since the hole 38 and the injection hole 22 of the nozzle body 20 are blocked), maintenance of the bubble generator is easy.

The inlet injection hole 22AH is disposed in a direction perpendicular to the axial direction of the nozzle body 20 , and the intermediate injection hole 22BH is disposed in a direction orthogonal to the inlet injection hole 22AH, and the middle of the cross The injection hole 22CH is disposed in a direction orthogonal to the axial direction of the nozzle body 20 , and the inner injection hole 22DH extends at a predetermined angle with respect to the axial direction of the nozzle body 20 , and the inner diameter thereof is the nozzle. The inner spray hole 22DH is provided with a backflow preventing protrusion 22STP, and the fluid flowing in the flow passage inside the nozzle body 20 flows through the inner spray hole. The inner diameter of the inner injection hole 22DH is much smaller than the diameter of the flow path inside the nozzle body 20 even when the flow is reversed to 22DH, and is inclined toward the flow path, so that the fluid flows backward into the inner injection hole 22DH. This phenomenon is prevented, and the reverse flow of the fluid by the backflow barrier 12STP is prevented by making the inner diameter of the inner injection hole 22DH narrower by the backflow barrier 12STP provided in the inner injection hole 22DH. and a passage narrower than the inside of the cross intermediate injection hole 22CH and the intermediate injection hole 22CH is formed in the inlet injection hole 22AH to prevent a reverse flow of the fluid into the inlet injection hole 22AH.

When a phenomenon occurs that the fluid flowing along the inner flow path of the nozzle body 20 is about to flow back due to factors such as blockage of the flow path, the diameter of the inner injection hole 22DH is smaller than the diameter of the flow path inside the nozzle body 20 . Since it is extremely small and the inner diameter of the inner injection hole 22DH is gradually reduced toward the flow path of the nozzle body 20, a phenomenon in which the fluid flows backward from the internal flow path of the nozzle body 20 to the inner injection hole 22DH is prevented. can be prevented.

On the other hand, even if the fluid flows back into the inner injection hole 22DH, a narrower passage is made in the inner injection hole 22DH by the backflow barrier 22STP provided in the inner injection hole 22DH. Although the fluid flows back into the inner injection hole 22DH, the backflow of the fluid is prevented secondarily by the backflow barrier 22STP.

In addition, even if the fluid flows back into the narrower passage between the backflow barrier 22STP and the inner injection hole 22DH, the inner diameter cross-sectional area of the inlet injection hole 22AH is extremely small compared to the cross-sectional area of the intermediate injection hole 22BH. Since it is small, the backflow of the fluid is prevented in the third direction even from the side of the inner injection hole 22DH.

In addition, since the cross-sectional area of the inner diameter of the supply hole 38 provided in the divided supply header set 30DHS is also extremely small compared to the cross-sectional area of the inlet chamber 31, even if a very small portion of the fluid enters the inlet chamber 31 Even if the reverse flow occurs, the reverse flow of the fluid is prevented in the fourth direction from the supply hole 38 side.

In other words, the primary neck is formed by the inner injection hole 22DH to prevent the fluid from flowing backward in the flow path inside the nozzle body 20 , and the fluid is reversed by the backflow barrier 22STP. A secondary neck portion is formed to prevent the inlet injection hole (22AH) from flowing backward, a tertiary neck portion is formed to prevent a reverse flow of the fluid, and a supply hole (38) provided in the divided supply header set (30DHS). Since the quaternary neck portion is formed to prevent the fluid from flowing backward, it is possible to completely prevent the reverse flow of the fluid flowing in the flow path inside the nozzle body 20 .

In addition, a plurality of divided supply header sets 30DHS are detachably coupled to the nozzle body 20 by a screw hole and a screw portion, so that the divided supply hole 38 of the divided supply header set 30DHS is blocked or the nozzle body When the inlet hole of (20) is blocked, the split feed header set (30DHS) is disassembled to clean the clogged split feed hole 38 and the inlet hole of the nozzle body 20 can also be cleaned. It has the effect of solving the problem of simply discarding the bubble generating nozzle due to clogging.

Terms such as "include", "compose" or "have" described above mean that the corresponding component may be inherent unless otherwise stated, so it does not exclude other components. It should be construed as being able to further include other components. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Commonly used terms such as terms defined in the dictionary should be interpreted as being consistent with the contextual meaning of the related art, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present invention.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Therefore, since the embodiments described above are provided to fully inform those of ordinary skill in the art to which the present invention pertains the scope of the invention, it should be understood that they are exemplary in all respects and not limiting, The invention is only defined by the scope of the claims.

110. Tank 112. Screen
114. Spray nozzle 116. Suction port
122. Bubble generator 132. Pump
152. Overflow pipe 162. Filter
172. Overflow Tank

Claims (11)

a water tank 110 filled with water to soak the object to be treated;
a screen 112 installed in the water tank 110 to form a screening space 112SC in the inner space of the water tank 110;
an overflow pipe 152 connected to the screening space 112SC of the water tank 110 to receive water passing through the screen 112;
a filter 162 installed in the overflow pipe 152 to filter out foreign substances from the water entering the overflow pipe 152;
an overflow water tank 172 that enters the interior of the overflow pipe 152 and receives the water filtered by the filter 162;
A pump 132 for recirculating the water received in the overflow water tank 172 to the water tank 110;
An overflow hole 113 is provided in the water tank 110, and an external overflow water tank 180 for receiving floating matter overflowing from the overflow hole 113 is installed outside the water tank 110, A connection overflow circulation pipe 181 is connected to the external overflow water tank 180, and a first circulation pipe 182 and a second circulation pipe 184 are connected to the connection overflow circulation pipe 181, The first circulation pipe 182 is connected to the water tank 110, the second circulation pipe 184 is connected to the overflow water tank 172, and a filter ( 186) is provided, the inlet end side filter 192 is provided at the inlet end of the overflow pipe 152, and the filter 162 is detachably coupled to the outlet end of the overflow pipe 152, The overflow pipe (152) is provided with a communication hole (152CH), a water treatment system with improved efficiency of preventing clogging of foreign substances.
According to claim 1,
a spray nozzle 114 provided in the screening space 112SC formed in the water tank 110 by the screen 112;
a bubble generating device connected to the injection nozzle 114 to generate bubbles in the water in which the object to be treated is immersed;
It further includes; the suction port 116 provided in the overflow water tank 172,
The pump 132 is a water treatment system that improves the efficiency of preventing blockage of foreign substances, characterized in that it sucks the water received in the overflow water tank 172 through the suction port 116 and recirculates it to the water tank 110 . .
According to claim 1,
The water filled in the water tank 110 enters the overflow pipe 152 and passes through the filter 162 so that the speed through the plurality of passage holes formed in the screen 112 becomes a speed converging to zero. It overflows into the overflow tank 172 and naturally falls, and the foreign matter clogging prevention efficiency is improved, characterized in that it is configured to delay the blocking period of foreign substances generated during washing of the object to be treated in the passage hole of the screen 112 as much as possible. water treatment system.
4. The method of claim 3,
A water treatment system with improved efficiency of preventing clogging of foreign substances, characterized in that the speed at which the water filled in the water tank (110) passes through the passage hole of the screen (112) is in the range of 1 to 2 cm per minute.
3. The method of claim 2,
A nozzle support pipe 114PI erected in a vertical direction to face the screen 112 is installed in the screening space 112SC formed in the inner space of the water tank 110 by the screen 112, and the nozzle support pipe ( 114PI), the spray nozzle 114 is installed, and the water is sprayed back toward the screen 112 by the spray nozzle 114 to prevent foreign substances from being caught in the passage hole of the screen 112. A water treatment system with improved efficiency of preventing clogging of foreign substances.
6. The method of claim 5,
The injection nozzle 114 is coupled to the nozzle support pipe (114PI) and is disposed in a plurality of positions facing the screen (112).
6. The method of claim 5,
The nozzle support pipe 114PI is configured to be rotatable, and the spray nozzle 114 coupled to the nozzle support pipe 114PI also rotates while reversely spraying water evenly over the entire surface of the screen 112 to the screen. A water treatment system with improved efficiency of preventing foreign substances from clogging, characterized in that it is configured to prevent foreign substances from being caught in the plurality of through holes formed in (112).
3. The method of claim 2,
Oxygen, ozone, or general air is introduced into the bubble generator so that the water filled in the water tank 110 is formed as aerobic water.
3. The method of claim 2,
In the screening space 112SC, foreign substances generated when the object to be treated by the bubbles formed by the bubble generating device overflow to the outside of the water tank 110 while floating on the water surface, and the overflow pipe 152 ) through which the water overflowed is recirculated by the pump (132).
delete According to claim 1,
A spray nozzle 114 provided in the screening space 112SC between the screen 112 and the water tank 110 is provided, and the spray nozzle 114 generates bubbles in the water immersed in the object to be treated. A generating nozzle 120 is connected, and the bubble generating nozzle 120 is connected to the pump 132 to generate bubbles in the water filled in the water tank 110 by the bubble generating nozzle 120 . and the bubble generating nozzle 120 includes a nozzle body 20 having a flow path therein; a supply header unit 30 coupled to an outer circumferential surface of the nozzle body 20; an inlet chamber 31 secured between an outer circumferential surface of the nozzle body 20 and an inner circumferential surface of the supply header part 30; a supply hole 38 provided in the supply header part 30 and communicating with the inflow chamber 31; It is provided in the nozzle body 20 and is configured to include a spray hole 22 communicating with the inlet chamber 31 , and the spray hole 22 is constant from the outer circumferential surface of the nozzle body 20 to the inside. a deeply extended inlet injection hole (22AH); an intermediate injection hole (22BH) communicating with the inlet injection hole (22AH); It is connected to the intermediate injection hole 22BH and the flow path inside the nozzle body 20 and extends obliquely at a certain angle with respect to the axial direction of the nozzle body 20 , and its inner diameter is toward the flow path inside the nozzle body 20 . A water treatment system with improved efficiency of preventing clogging of foreign substances, characterized in that it includes;

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